{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9720395","patent":{"patent_number":"US-9720395","title":"Synchronization control for reconnecting microgrid to main grid after islanding","assignee":null,"inventors":[],"filing_date":"2014-11-18T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G05B","H02J","G05B","H02J","G05B","H02J"],"num_claims":18,"abstract":"A method and system are provided. The method includes synchronously reconnecting a microgrid to a main grid after islanding of the microgrid. The synchronously reconnecting step includes calculating a phase angle difference between synchrophasor measurements collected from a common coupling on the main grid and synchrophasor measurements collected from a common coupling on the microgrid. The synchronously reconnecting step further includes calculating, by a controller, a frequency reference deviation based on the phase angle difference. The synchronously reconnecting step also includes adjusting a frequency of the diesel generator based on the frequency reference deviation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Synchronization control for reconnecting microgrid to main grid after islanding","description":"A method and system are provided. The method includes synchronously reconnecting a microgrid to a main grid after islanding of the microgrid. The synchronously reconnecting step includes calculating a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9720395","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9720395","citation_suggestion":"Patentable. \"Synchronization control for reconnecting microgrid to main grid after islanding\" (US-9720395). https://patentable.app/patents/US-9720395","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9720395","json":"https://patentable.app/api/llm-context/US-9720395","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:22:20.870Z"}